Rolle's theorem cannot be applied to the function f(x) = x^1/3 on the interval [–1, 1] because...
f is not differentiable on the interval [–1, 1]
f(–1) ≠ f(1)
f is not differentiable on the interval [–1, 1] and f(–1) ≠ f(1)
Rolle's theorem can be applied to f(x) = x1/3 on the interval [–1, 1]